25.
----- ------ Y, 125, 127.

Treacle, 138.

Tropaeoline, 122, 131.
---------- O, 190.
---------- O O, 171, 178.

Turmeric, 13, 63, 120, 189.

Turquoise blue B B, 195.
--------- ---- G, 196.
--------- green, 134.

#U.#

Union black B, 169.
----- ----- S, 169, 176, 178, 179, 180.
----- blue B B, 169.
----- fabrics, dyeing of, 168.
----- flannels, 173.

Urine indigo vat, 145.

#V.#

Velvet, embossing of, 14.

Victoria black, 89, 189.
-------- black B, 91, 191.
-------- ---- blue, 155.
-------- blue, 189.
-------- ---- B, 155.
-------- ---- black, 91.
-------- scarlet R, 107, 110, 111.
-------- rubine O, 107, 111.
-------- violet 8 B S, 130, 155.
-------- yellow, 111, 124, 130, 162.

Violet, 160, 192, 193.
------ and pink, 193, 194.
------ black on wool, 89, 90, 91, 93, 95.
------ blue, 155.
------ grey, 166.
------ shades on wool, 160.

#W.#

Walnut, 162.
------ brown, 176, 182.

Washing of goods, 200.

Water blue, 37.

White indigo, 138.

Wince dye beck, 53, 54.

Woad, 138.
---- indigo vats, 139.
---- vat, 145.

Woaded black, 86.

Wool, 1.
---- action of acid on, 11.
---- alkalies, action of on, 9.
---- batching, 15.
---- black, 89.
---- ----- 6 B, 171, 180, 181, 186.
---- bleaching, 29.
---- --------- peroxide of hydrogen, 34.
---- --------- -------- of soda, 36.
---- --------- with sulphur, 30.
---- chemical composition of, 6.
---- chlorination of, 37.
---- blue B X, 153.
---- ---- dyeing with logwood, 161.
---- fibre under microscope, 2.
---- ----- unscoured, 10.
---- ----- chemical composition of, 7.
---- ----- scoured badly, 10.
---- ----- showing medullary centre, 4.
---- ----- heated with acid, 11.
---- grey R, 166.

Woollen piece goods, scouring of, 28.
------- yarn, 2.

Wool oil, 26.
---- physical properties of, 2.
---- -------- structure, variations in, 5.

Wool scouring, 15, 17.
---- -------- by solvents, 23.

Wool-washing machine, 20, 21.

Worsted yarn, 2.

Wringing of goods, 197.

#Y.#

Yarn-drying machine, 208.

Yarn, washing of, in hanks, 202.

Yarn wringing, 198.

Yellow, 125, 195.
------ brown, 161.
------ N, 125, 133, 134.
------ olive, 135.
------ shades on wool, 123.

Yolk, 7.

Yorkshire grease, 26.

#Z.#

Zambesi black B, 170, 181.
------- ----- D, 170, 180, 181.
------- ----- F, 171.
------- blue R A, 180, 181.
------- brown G, 171, 181.
------- ----- 2 G, 171.
------- dyes, 168.

Zinc dust, 141